Foot-grip for bicycle-pedals, &amp;c.



Patented July 25, I899.

A. G. TUMKIES. I

FOOT GRIP FOB BICYCLE PEDALS, &.|:.

(Application filed Mar. 15, 1899.)

(No Model.)

In: new; vtrzas c0. puo'rauma, wasnmowu. o. c

UNITED STATES PATENT OFFICE.

ARTHUR GRET' ON TOMKIES, OF BRUNNERTON, NE\V ZEALAND.

FOOT-GRIP FOR BICYCLE-PEDALS,

s'rncr'rrchrrolv forming part of Letters Patent No. 629,627, dated July 25, 1899.

Application filed March 15, 1 99- Grip for Bicycle-Pedals and the Like, (for which I have obtained Letters Patent in New Zealand, No. 10,871, dated August 15, 1898,) of which the following is a specification.

This invention relates to bicycle-pedals and the like, and has for its object to provide a grip for securing the sole of the riders boot or shoe so that he may be able to use the upstroke of the foot in assisting to propel the machine.

The grip consists of a base-plate resting upon the pedal and prevented by lugs from turning around. An upper plate carries plates pivoted upon pins and slotted to receive bolts for securing and laterally adjusting grippingjaws. A center pin or stud passes through the plates, has a hook to pass around the barrel of the pedal, and forms a pivot for the top plate. A nut upon the center pin or stud fastens the plates to the pedals in such a manner that the top plate is free to swivel, while the base-plate is rigidly held. The foot of the rider is inserted at an angle between the jaws with the sole of the'boot or shoe resting against the catch or lug. The foot is then turned to swivel the top plate and close the jaws to grip the sole, the jaws being set so that the foot will be in its correct position when the jaws have gripped. The rider is thus enabled to pull the pedal upward during the upstroke and push the same downward during the downstroke in the ordinary manner.

Figure 1 is a side view of the grip in position upon a pedal with the jaws closed. Fig. 2 is a plan of the same. Fig. 3 is a view of the lower side of the top plate. Fig. 1 is a plan of the lower plate in position upon a pedal. Fig. 5'is a plan of the grip with the upper plate at an angle and the jaws open. Fig. 6 is a cross-section on line A B, Fig. 2. Fig. 7 is a perspective view of one of the jaws. Fig. 8 is a view of a bolt.

Similar figures of reference indicate corresponding parts throughout the several views.

Referring to the drawings, the base-plate 1 has wings 2, provided with slots 3, which engage with lugs 4 on the pedal 5. Links 6 Serial No. 709,234. (No model.)

are pivoted by pins 7 to the base-plate 1. The

upper plate 8 has ribs 9, formed by bending the metal, as shown on'Fig. 1, and on its lower side is provided with plates 10, pivoted to the said plate 8 by pins 11. These said plates 10 have slots 12 to receive bolts 13, which have necks square in section, and the nuts are chamfered and fit into corresponding holes in the jaws 14, which are serrated and shaped as shown and are secured to the plates 10 by the bolts 13. The vertical sides of these jaws are extended inthe direction of the pivots 11, Figs. 2 and 5, so that the ends of the said jaws have little'movement while they are closing upon the foot; The foot thus rests upon the ends of the jaws as a guide, while the remaining parts of the jaws complete the grip. Pins 15, secured to the plates 10, fit into holes 16 in the links 6, and their extremities, which project through the said links, pass into the curved slots 17. The bolt 18 unites the plates 1 and 10, and by its hook 10 gripping the barrel 20 secures the whole to the pedal. The nut 21 of the said bolt is formed with a shoulder 22 to give freedom to plate 8. The base-plate 1 is embossed at 23, and the shoulder 22 of nut 21 screws tightly against this embossed part, leaving a space between plates 1 and 8 for the links 6 and plates 10. Bolts 13 have square necks '24 to fit the slots 12, and nuts 25 have cones 26, which fit into chamfered holes 27 in jaws 14.

The foot of the rider is inserted in the grip when the top plate is at an angle, as shown by Fig. 5. By turning the foot to the correct position for riding the jaws 14 close upon the sole of the boot or shoe and firmly grip the same, the movement of the parts being that the plates 10 pivot on the pins 11 and are guided inward by the links 6. The release of the foot is efiected by a reverse movement.

Having thus described myinvention, what Iclaim as new therein, and desire to secure by Letters Patent, is

1. In combination with the pedal of a bicycle and the like, a foot-grip comprising a base plate, means for securingthe plate to the pedal, links pivoted to the plate, a top plate swiveled upon a central bolt, plates pivoted to the top plate and links and jaws mounted upon the said plates, substantially as and for the purposes set forth herein.

2. In combination with the pedal of a bicy- Wings upon the plate and curved slots cntin ole and the like, a foot-grip comprising a basethe plate, a central bolt having a hook to em- 15 plate embossed at its central part, slotted brace the barrel of the pedal and a shouldered wings upon the plate and curved slots out in nut, links pivoted to the plate, a top plate 5 the plate, means for securing the plate to the swiveled upon the nut on the central bolt, pedal, links pivoted to the plate, a top plate plates pivoted to the top plate and links and swiveled upon a central bolt, plates pivoted jaws mounted upon the said plates, substan- 20 to the top plate and links and jaws mounted tially as and for the purposes set forth herein.

upon the said plates substantially as and for 1 v 1 10 the purposes set forth herein. AR'I HUB GREITON TOMKIES' 3. In combination with the pedal of a bicy- \Vitnesses: cle and the like, a foot-grip comprising a base- ARTHUR L. RYAN,

plate embossed at its central part, slotted RALPH THOMPSON RAYNER. 

